package com.ruoyi.web.controller.shop;

import java.util.List;
import javax.servlet.http.HttpServletResponse;

import com.ruoyi.shop.domain.Goods;
import com.ruoyi.shop.domain.OrdersGoods;
import com.ruoyi.shop.service.IGoodsService;
import com.ruoyi.shop.service.IOrdersGoodsService;
import com.ruoyi.system.service.ISysUserService;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.ruoyi.common.annotation.Log;
import com.ruoyi.common.core.controller.BaseController;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.enums.BusinessType;
import com.ruoyi.shop.domain.Orders;
import com.ruoyi.shop.service.IOrdersService;
import com.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.common.core.page.TableDataInfo;

/**
 * 订单管理Controller
 * 
 * @author ruoyi
 * @date 2025-08-11
 */
@RestController
@RequestMapping("/shop/orders")
public class OrdersController extends BaseController
{
    @Autowired
    private IOrdersService ordersService;
    @Autowired
    private ISysUserService userService;
    @Autowired
    private IGoodsService goodsService;
    @Autowired
    private IOrdersGoodsService ordersGoodsService;
    /**
     * 查询订单管理列表
     */
    @PreAuthorize("@ss.hasPermi('shop:orders:list')")
    @GetMapping("/list")
    public TableDataInfo list(Orders orders)
    {
        startPage();
        List<Orders> list = ordersService.selectOrdersList(orders);
        list.forEach(item -> {
            item.setUserName(userService.selectUserById(item.getUserId()).getNickName());
        });
        return getDataTable(list);
    }

    /**
     * 导出订单管理列表
     */
    @PreAuthorize("@ss.hasPermi('shop:orders:export')")
    @Log(title = "订单管理", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    public void export(HttpServletResponse response, Orders orders)
    {
        List<Orders> list = ordersService.selectOrdersList(orders);
        ExcelUtil<Orders> util = new ExcelUtil<Orders>(Orders.class);
        util.exportExcel(response, list, "订单管理数据");
    }

    /**
     * 获取订单管理详细信息
     */
    @PreAuthorize("@ss.hasPermi('shop:orders:query')")
    @GetMapping(value = "/{id}")
    public AjaxResult getInfo(@PathVariable("id") Long id)
    {
        Orders orders = ordersService.selectOrdersById(id);
        orders.setUserName(userService.selectUserById(orders.getUserId()).getNickName());
        return success(orders);
    }

    /**
     * 新增订单管理
     */
    @PreAuthorize("@ss.hasPermi('shop:orders:add')")
    @Log(title = "订单管理", businessType = BusinessType.INSERT)
    @PostMapping
    public AjaxResult add(@RequestBody Orders orders)
    {
        return toAjax(ordersService.insertOrders(orders));
    }

    @PutMapping(value="/updateOrdersAmount")
    public AjaxResult updateOrdersAmount(@RequestBody Orders orders) {
        return toAjax(ordersService.updateOrdersAmount(orders));
    }

    @PutMapping(value="/updateOrdersDeliveryNo")
    public AjaxResult updateOrdersDeliveryNo(@RequestBody Orders orders) {
       return toAjax(ordersService.updateOrdersDeliveryNo(orders));
    }
    /**
     * 修改订单管理
     */
    @PreAuthorize("@ss.hasPermi('shop:orders:edit')")
    @Log(title = "订单管理", businessType = BusinessType.UPDATE)
    @PutMapping
    public AjaxResult edit(@RequestBody Orders orders)
    {
        Orders oldOrder = ordersService.selectOrdersById(orders.getId());
        if(oldOrder.getStatus().equals("0")){
//            待付款	0
//            待发货	1
//            待收货	2
//            已完成	3
//            已取消	4
            if (orders.getStatus().equals("1")) {
                OrdersGoods ordersGoods = new  OrdersGoods();
                ordersGoods.setOrdersId(oldOrder.getId());
                List<OrdersGoods> list = ordersGoodsService.selectOrdersGoodsList(ordersGoods);
                for (OrdersGoods item : list) {
                    //先判断商品库存
                    Goods good = goodsService.selectGoodsById(item.getGoodsId());
                    if(item.getGoodsNum()>good.getInventory()){
                        return error("商品库存不足");
                    }else{
                        //减少库存
                        good.setInventory(good.getInventory()-item.getGoodsNum());
                        goodsService.updateGoods(good);
                    }
                }

            }

         }else{
            if (orders.getStatus().equals("4")) {
//                增加库存
                OrdersGoods ordersGoods = new  OrdersGoods();
                ordersGoods.setOrdersId(oldOrder.getId());
                List<OrdersGoods> list = ordersGoodsService.selectOrdersGoodsList(ordersGoods);
                for (OrdersGoods item : list) {
                    Goods good = goodsService.selectGoodsById(item.getGoodsId());
                    good.setInventory(good.getInventory()+item.getGoodsNum());
                    goodsService.updateGoods(good);
                }
            }
        }
        return toAjax(ordersService.updateOrders(orders));
    }

    /**
     * 删除订单管理
     */
    @PreAuthorize("@ss.hasPermi('shop:orders:remove')")
    @Log(title = "订单管理", businessType = BusinessType.DELETE)
	@DeleteMapping("/{ids}")
    public AjaxResult remove(@PathVariable Long[] ids)
    {
        return toAjax(ordersService.deleteOrdersByIds(ids));
    }
}
